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Anthropic's Claude now writes code and proves it safe automatically

Technology · en

Anthropic's Claude now writes code and proves it safe automatically

The Decoder · Oct 23, 2026, 11:32 AM UTC

Anthropic had Claude generate mathematical proofs that existing code is correct, producing roughly 180 million lines of proof code for 123 open-source libraries. Along the way, the model caught bugs that years of testing had missed. Anthropic's goal: making formal verification with AI as routine as standard testing.…